Quick-detachable disk bearing



Nov. 6, 1928. 1,690,530

- H. P. GORBIN QUICK DETACHABLE DISK BEARING Filed April 14, 1924 3Sheets-Sheet l H. P CQRBIN QUICK DETACHABLZ DISK BEARING Nov. s, 1928.1,690,530

v Filed April 14, 191 a Sheets-Sheet 2 I V e 4 v Patented Nov. :6, 1928. V UNITED STATES PATE T OFF C HENRY r. CORBIN, or MOLINE, ILLINoIs,sssienon, BY MEsnnAssIeNMENTs,no

MOLINE IMPLEMENT COMPANY, A oonrona'riou or ILLINOIS.

QUIGK-DETACHABLE DISK BEARING.

' Application filedcApril 14, 1924. Serial NQTIO GQBA.

The invention relates to-a quick detachable disk bearing. It relatesparticularly to a bearlng foragricultural disks of the type used on diskplows a and it is illustrated in. connection with a disk plow. I

Disk plows usually have a heavy wheeled frame carrying one or morerotary disks which are set at anangle to thetdirection in. m which theplow ispulled. As the plow moves forward, thedisks turn up the groundand atthe same time rotate- 'There is a very heavy thrust on each diskand itsbearing must/be such thatthe disk can absorb this is thrust andat the same time rotate.

plows are used under .difiicult. conditions where the moldboard plowwill not operate. They must, therefore, be unusually rugged in theirconstruction and this applies to the so bearings as well as to the otherparts of'the plow. It is extremely desirable to havethc bearings simpleso that they willrnot get outof' order and it is likewise desirable tohave them easily removable so that the disks can be detached forrepairsand so that the bearings themselves can be inspected or repaired,ifnecessary. Thelocation of the bearings is such that they becomecovered with dirt and they are subjected to the action of the elementsnot only in plowing but because the implement is often allowed tostandinthe open. The bearings are'usually fastened in place by somefastening means such as'bolts, nuts,

. or the like, which. are not only tedious to ma nipulate but whichoften become rusted and stuck so as tomake it'a difiicult ob to removethe bearings. Thelpresent invention is directed to a solution. of thisproblemtand to the provision of a simple, durable bearing that can bequickly and easily attached and detached to the diskplowx I The generalobjec'tflofthe invention is to provide an improvedqui'ck detachable diskbearing. 1 More particularly, the object is toprovide a 'simple bearingthat will operate "efiiciently under the rigid-conditions of use in diskplowing and at the same time one which can be readily attached anddetached without disconnecting any bolts, nuts, etc.

Other objects and advantages .of the inventionwill appearfrour thespecification and drawings. it I a A An embodimentof the invention isillustrated in the drawings, in'which Disk member. 'of the manylubricating devices nowion' the marketmto the opening and forc ng greaseFigure 1 is a perspective view of a portion of a disk plow showing theimproved bearing andthe rear side of one of the plowingdisks. F1gure2 isa rear elevation of the bearing.

" Figure 3 is across section of onepart of the bearing.

"Figure 4c is a cross section of another part of the bearing.

Figure 5 is a side elevation of the bearing initsassembled position. I p

Figurefi is a cross section of the bearing in assembled position. I IFigure 7 is a cross section showing the position of the parts when thebearing is being assembled. I c c c The disk plow with which the bearingis illustrated hasa plowing disk 1 carried by an arm 2 attachedto theframework 3 of the disk plow. The size and shape of thedisk as wellholdthe socket member ,5 in position on the cone-shaped member but.permits the cone shaped member to rotaterelative to the socket 1 Thesocket member 5 has a shoulder ll'ne'ar, its inner end,thepurposeofwhich will be hereinafter described,-a'nd atits outer end itis provided with a projection or lug;12 having a cam face 13. The outerend l iofthe socket member is thicker than the-side. walls and it hasstraight sides 15 forming a square portion, illustrated inFigure2whicl1f1nay be grasped by a wrench. The outerlendof the socketmember is also provided with an opening whichis closed by ascrewthreaded plug .17. This opening permits lubricant tobeinserted.throngh'tlie end of thesocket This can be done by screwingone into the bearing. A portionof the lubricant may be retained intheopening 16 and forced into the cavity ofthe soc tet member by meansof the plug 17; 3

. Thesupport-ing arm 2 is provided with" a tapered opening 20 for thereception of the socket member 5. The opening has an enlarged portion 21illustrated most clearly 1n Figure 4. Th;is opening providesa clearancev near the center to cause the socket member to contact the surface ofthe opening near its ends. As illustrated, the opening is made directlyin the arm 2 but it will be understood that the shape oft-he supportingarm would be different in different types of implements and, in somecases, the arm might simply support a sleeve orother member having anopening for receiving. the socket 5, p

A slot 22 is provided in the opening 20 to accommodate the lug '12 onthe socket 5.

When the bearing is being assembled the" parts occupy the positionillustrated in Figure 7, which showsthe position of socket I The partsareproportioned so that, when .is cam shaped. It is best illustrated'inFig- 'member 5 as it passes through the opening, the lug 12 being in theslot 22. In assembling the members, the socket 5 is inserted through theopening until the shoulder 11 COIlttlCllS,-'Ol' nearly contacts, theinner face 25 of the arm.

they are in this position, the lug 12 has passed the rear surface 24 ofthe'arm' 2; The socket member 5 can then beturned because the lug, beingout of the'slot, will not interfer-e with the turning movement.

Therear surfaceQt adjacent the opening 20 ure 5, The slot 22 is at thetop of the opening 20 and the surface 24 is inclined from that point-toa point 180 degrees from it so that,

as the socket member 5 is turned, the cam face :13 of the lug 12contacts the surface 24 and forces the shoulder 11 againstthesurface 23.The socket member isthus efiectually locked in position on the an I Theinclination of the surface 24' is preferably-in a direction such thatthe normal rotationof the disk 1 during plowing tends to tighten thesocket in position. The other half, or 180 degrees, of the surface 24isnot inclined, as illustrated, but itwill be understood that thissurface can be inclined also if sary'to' insert the socket member 5,through the open1ng20 with theilug 12 passing through slot 22 and givethe" socket a turn. In fact, a turn of the disk'will' often turn thesocket to place; This tightens the hearin I on the arm and the rotationof the disk durthe shoulder l-lland the lug When t is desired to detachthe bearing, the socketniemberis turned in reversedirecing plowing tendsto increase the tightness. The socket .5 firmly grasps the arm betweention. Sometimest-his can be done by hand but if not, .a wrench can beplaced on the come lost or'misplaced.

ing means.

It will benoted that the bearing can thus be attached and detachedwithout theuse of any additional parts such as bolts, nuts, cotters andthe like and without detaching or attaching portions of either thesocket member or the supporting member. Rust, dirt and so forth cannotinterfere with its action. There are no rusted bolts, nuts, cotters orthe like to unfaste-n. There are no parts to be- The bearing isextremely simple. ltisrsusceptible of inexpensive manufacture. It hasproved very durable in practice and it is extremely convenient in use onaccount ofits capacity for being quickly attached and detache It is tobe understood thatthe construction shown is for purposes of illustrationand that variations may be made in it without departing from the-spiritandscope of the invention as defined-by the claims.

1. A -quickedetachable, agricultural-disk bearing having a cone-shaped.member, a socket member in whlch the cone-shaped member is ournalledfor rotat on,meansfor holdingthe socketmember on the cone-shaped "memberbut permitting relative rotation of the two, said socket memberhaving aprojected lug near its rear end and a shoulder near its forward end, andsupporting means having an opening for 'receiving the socket member,which-opening is provided with a slot to receive the lug, saidsupporting means having acam surface adj acent the rear end of itsopening so that by passing the lug through the slot and turningthe.socket'member, the cam surface willco-operate with the lug'to cause itto force theshoulder into contact with the supporting means tothereby;tigl1ten and hold the soeket member in the support- 2. Ina diskplow, disk, a cone-shaped member carried by the disk, a socket member inwhich the cone-shaped member is journalled for rotation, means forholding the socket member on the cone-shaped member but permittingrelative rotation of the two, said socket member having a projected lugnear itsrear-end and a shoulder near its'forward end, and supportingmeans having an openingcfor receiving the socket member which'opening isprovided Witha slottoreceive the lug, saidsupportlngmeans having a camsurface adjacent the rear end ofits opening sothat by passing the lugthrough the slot turning the socket member, 'the cam 1 surface Willcooperate with the lug to cause I it to force the shoulder intocontactwith the supporting means to thereby tighten and hold the socketmember in the supporting means, said cam surface being-shaped softhatthe ro tation of the disk during plowing tends to tighten the socketmember in the supporting means. I

8. In a disk plow, a disk, a cone-shaped member carried by the disk, atapered socket member in which the cone-shaped member journalled forrotation, said socket member having a projecting lug near its outer endand a shoulder and an. annular flange near its inner end, an annularflange member attached to the disk and co-operating' with the annularflange on the socket member to hold the socket member in position on thecone member but permitting relative rotation of said members, asupporting means, saidsupporting means having a tapered opening toreceive the socket member, which opening is provided with a slot toreceive the lug on the socket member, said supporting means having a camsurface adjacent the rear end of the opening so that by passing the lugthrough the slot in the opening and turning the socket member the lugwill co-operate with thecam surface to pull the shoulder 1 of the socketmember against the supporting means and thereby tighten and hold thesocket men'iber firmly position. i

V 4:. In a disk plow, a disk, a cone-shaped member carried by the disk,a tapered socket member in which the cone-shaped member is journalledfor rotation, said socket member having a projected lug near its outerend and a shoulder and an annular flange near its inner end, an annularflangemember attached to the disk and co operating with the annularflange on the socket member to hold the socket member in position on thecone-shaped member but permitting relative rotation of the two, an armfor supporting the disk, said arm having a tapered opening to receivethe socket member which 0 aening is provided with a slot to receive thelug on the socket member, the rear surface of said arm adja-y cent itsopening being cam-shaped so that, by

journalled for rotation, said socket member having a projecting lug nearits outer end and a shoulder and an annular flange near its innor end,an annular flange member attached to the disk and co-operating withthe'annular flange on the socket member to hold the socket member inposition on the cone-shaped member but permitting the two to rotaterelative to one another, an arm for supporting the disk, s; d arm havinga tapered opening to receive the socket member, which opening is provided with a slot to receive the lug on the V socketmember, the rearsurface of said arm adjacent its opening being cam shaped so that bypassing the lug through the slot in the arm opening and turning thesocketmemberthe lug will co-operate with said surface to tightenand holdthe socket member firmly in position, the shape of thecam surface onsaid arm being such that the rotation of the disk during plowing tendsto tighten the socket member in the arm, the rear portion of said socketmember being shaped to receive a wrench so that the socket member may beeasily turned in reverse direction to position the lug adjacent the slotto permit ready removal of the socket member, said socket memher alsohaving an opening in its rear end through which lubricant may beinserted and a removable closure for said opening.

In testimony whereof, I afiix my signature.

HENRY P. CORBIN.

